Marc for Model Number Pss29nhnabb I have a GE Profile Arctica S x S Refrigerator with a model number of PSS29NHNABB Serial RD401602 that is about 10 years old. Both the refrigerator and freezer section are not cooling and are up to 61 degrees. We cleaned and checked all. When you open the door and then close it you do hear the motor running. I am thinking the motherboard is faulty? Any thoughts.
Answer Marc, You will want to check the evaporator coils to see if they are impacted with ice or if they have a good frost pattern. If the frost pattern is a good even pattern from the top to bottom then the issue will be with air flow. If the coils have just a little frost where it comes into the unit then there is a sealed system issue. If the coils are impacted with ice and you have a defrost issue in which You can check the defrost limiter to see if it has continuity. If it does not have continuity then you would not need to change it out. You will also want to check the defrost thermistor for resistance. The resistance values should be as follows, 42.5K at 0 degrees, 14.4k at 37 degrees and 5K ohms at 77 degrees. If not within range then it would need to be replaced. If it checks good then also check the defrost heater for continuity. If no continuity then replace and if good with continuity and all other components check ok then you would need a new main control board. Read More... Answered by AppliancePartsPros.com | Wednesday, May 21, 2014